Color Reference Image Calibration for Display Color Accuracy
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Solution Overview
Problem
Display devices struggle to accurately reproduce the colors of objects, particularly in e-commerce and remote diagnosis, as they often differ from the actual colors due to limitations in color representation.
Innovation Solution
A color difference adjusted image data generating device and method that adjusts image data by using a color reference image to match color reference data, generating a color conversion table for accurate color reproduction, and deleting parts of the color reference image to enhance object image color accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an external light sensor is attached to the image display device to enable calibration, then color reproduction accuracy is improved, but device complexity increases
Solution Approach 1:
The patent introduces a color reference image as an intermediary element that mediates between the object image and the display device. This color reference image serves as a calibration standard that can be displayed on the device itself, eliminating the need for external light sensors while maintaining color accuracy through comparison and adjustment mechanisms
Solution Approach 2:
The patent creates a color reference image that copies or represents known color standards within the display system. This copied color reference is then used to calibrate and adjust the display device's color output, allowing the system to self-calibrate without external measurement equipment
2Measurement precision
If color data is adjusted to match color reference data, then color accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent performs preliminary color adjustment by comparing the color reference image with the object image and pre-calculating the necessary color corrections. This preliminary action establishes a color adjustment profile that can be applied systematically, reducing the complexity of real-time color processing while maintaining high color accuracy
Solution Approach 2:
The patent adjusts color parameters (such as RGB values or other color space parameters) of the object image based on the comparison with the color reference image. By systematically changing these color parameters to match the reference, the patent achieves high color accuracy through controlled parameter adjustment rather than complex processing
3Productivity
If the color reference image is deleted from the adjusted image data, then image processing efficiency is improved, but calibration capability is reduced
Solution Approach 1:
The patent extracts or separates the color reference image from the final adjusted image data output. The color reference image is used during the calibration and adjustment process but is then removed from the final deliverable, allowing efficient image processing and delivery while maintaining calibration capability through the adjustment profile that was created during the process
Data Source
AI summary
An adjusted image data generating device includes storage and an adjusting section. The storage stores color reference data of a color reference therein. The adjusting section generates adjusted image data by adjusting an object image for image data representing a color reference image and the object image so that color data of a color reference image matches the color reference data. The color reference image is an image of a color reference. The image data is an image of an object.